Wintr Chess is a free chess game analysis tool focused on finding and highlighting brilliancies — exceptional moves that a weaker engine would miss but that stronger analysis confirms as best or near-best. The analysis assigns accuracy percentages and identifies brilliancy candidates, producing a summary that is more engaging to share than a list of centipawn losses.

Games can be analyzed by pasting a PGN or entering a Lichess or Chess.com game URL. The results page presents key moments visually and can be shared directly via URL. The interface is fast and the analysis runs server-side, so local hardware performance is not a constraint.

Wintr Chess is free to use with no account required. It is a popular tool among players who want to identify and share their best moves rather than focus exclusively on error correction.